Book: Palmer, Arlene. 1993 Glass in Early America: Selections from the Henry Francis du Pont Winterthur Museum. 425 pp.
• Similar flask: no. 374, p. 371Book: van den Bossche, Willy. 2001 Antique Glass Bottles: their history and evolution (1500-1850). 439.
• For technique, the "half-post" method: p. 57